Explosive.



()FFICE.

JOSEPH SAYERS, WALTER ATKINSON WILSON, AND JAMES T-HOBBURN, OFA'RIDEER,

e s n -e tries OF NEW JERSEY- To all whom it may-concern: """BG ":J gtfknQWlI: that we, Josnrn SAYERS, WALT-En Arrnmsort WILSON, and JAMES 'tlnoiih ivr,'*subjects of the'King of'Great "Brita-in; residing at Ardeer, Ayrshire, Scotlandg' -hav epinvented a new and useful Improvement in: Explosives, of which the folrious atteinpts have already been made to' lowin'g'is'a full,- clear, and exact description. *fItqis Well known that the freezing point 70f nitroglycerin can be lowered within certain" "lim'it's by dissolving therein one or ,more nitro bodies such, for instance, as di nitro-toluol, tri-nitro-toluol, etc., and va-' utilize this property in the production of explosives which will not be liable to freeze at low temperatures. As appears from patent "jble to detonation, and have adjusted the proportions of the other ingredients present,

particularly of the oxidizing agent, 6.9.,

- perchlorate of potash, and of. the combustible, 6. g.,- woodmeal, with the result that we have succeeded in producing compositions of high explosive ower which remains sub stantially undiminished at low temperatures, The said com ositions consist of nitro-glycerin having issolved therein a mixture of nitro bodies, viz :'mono-nitro-naphtha lene,'

di-nitro-toluol, tri-nitrostoluol, soluble in large proportions, constituting a solution which remains unfrozen at 'low temperatures; the solution being gelatinized or not in. known manner by addition ofnitro-cotton or nitro-starch, and the solution or jell being mixed: with an oxidizing agent suc as perchlorate of potassium or of sodium or of ammonium or a mixture of such perchlo- 1 rates, or in lieu of or aswell as the perchlo-' 60 rate or erch1orates,"one or more'ef the correspond ng nitrates, or chlorates, and with a v 'sniflcationoif Letters Patent. No itawin g'r- Original application flle.d November 15, 1910, Serial No.

7 tion filed April 26, 1911. Serial No. 623,448.

5991314413112, assmnons 'TO E. I. nu 301w DE NEMOURS rownsn ooivrranm orlwn- Patented June 13,7:1911.

582,535. Divided and this applican combustible which is also absorbent suchlfor instance as Wood-meal, flour, bra-n or the like, with or without the addition ofgraphr ite, magnesium carbonate, chalk or the like.

The proportions of the aforesaid ingredlents which we have found to be most suitable are as follows Q I v 1 Nitro-glycerin 23. 83 Nitromotton 1. 60 MonOmitrO-naphthaIene 1. 09.

Di-nitro-tolu01 3. 27' Tri-nitro-toluol 5. 83. Potassium perch1orate 52.35 Wood-meal (dry) 12.00

- I 99. 97 I Nitro-glycerin -i 18. 89 Nitro-cotton .4 1. 27 Mono-nitro-naphthalene 0. 87 Di-nit-ro-toluol 2. 6O Tri-nitro-toluol 4. 62 Potassium perchlorate 58. 75 Wood-mesh; "f. 9. 51 Magnesium carbonate z 0. 50 Graphite 2. 99

100. 00' i e) Nitro-glycerin 17. 20 Nitro-cotton p 1. 34

Mono-nitro naphthalene 1.20. Di-nitro-toluol ,--s----}- *3. 5 9 Tri-nitro toluol 6. 37 Potassium chlorate, 60. Wood-meals 10.00

, Nitro-glycerin -a. 16', 00 'Nitro-cotton 1 24; .Mono-nitroma hthalene 1. 10 Di-nitro-toluo -5 3; 34 Tri-nitro-toluol 5". 92 Ammonium nitrate 69. 96 Wood-meal 2.

(5) Thisspplication is a division of a plica- Nit l i 15 30 tion Seria No. 529,535, filed Novem er 15, Mono-nitro-naphthalene 1.10 i I Di it -t 1 1 330 We do not claim in thisappllcation the ie 80 proportions of the compositions set out Potassium nitrate"; 41.00 herein under the headings W L l 32 ()0 (3) and (5 as the same are claimed in Ch 1k 5 applications erial N0.- 592 535, filed No 4 vember 15, 1910, and Seriai Nos. 623,446,

00 623 447 and 623,449,-'filed April 26, 1911. aving now fully described our invention, 1119 P ortlons glVBn, the abOW exam what we claim and desire to protect by Let-' ples shoul not be materially departed from, t r P t t i' as the-snccess obtained with our explosives A x losivecompound comprising nit is consequential upon the selection of the l i 1 90 per cent it tt 124 P p P PQ P per cent, mono-nitro-naphthalene 1.10 per ,P mlsunderstendmg It y cent, di-nitro-toluol 3.34 per cent., tri-nitr'oexplalned that the proportions of all the 111- t luol 5.92 per cent., ammonium nitrate gredients enumerated 1n the various exam- 69.90 per cent. and wood-meal 2.50 per cent.

ples given are applicable onlyfor the particular example, 6. 9., the proportion of wood-meal in Example (4), viz.2.50 which approximates to the proportion of wood-meal used in known explosives of .a different "character holds good only for that'particula-r example.

We do not herein claim the compounds I set forth in the examples, withthe exception of the hereinafter claimed compound, as such other compounds form the sub3ect matter of separate applications. Y

In testimony of which invention, we have hereunto set our hands,. respectively, at

Glasgow, Scotland, and Nanaimo, Canada on this 15th day of Feby. and 20th day 0% March, 1911. I

JOSEPH SAYERS. .VVALTER ATKINSON WILSON. JAMES THORBURN. Witnesses:

JOHN OGLEARY', v Tnoms- BIsHor GRAHAM, E. EYERS. 

